<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title></title>
    <style>
        body {
            background-image: url('/img/bj.jpg');
            background-position: center -40px;
            background-repeat: no-repeat;
            background-attachment: fixed;
        }
    </style>
</head>
<body>
</body>
</html>
